CN109161270A - A kind of aqueous dual-component woodwork coating - Google Patents
A kind of aqueous dual-component woodwork coating Download PDFInfo
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- CN109161270A CN109161270A CN201811012317.1A CN201811012317A CN109161270A CN 109161270 A CN109161270 A CN 109161270A CN 201811012317 A CN201811012317 A CN 201811012317A CN 109161270 A CN109161270 A CN 109161270A
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- agent
- aqueous
- woodwork coating
- water
- curing agent
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of aqueous dual-component woodwork coating, the aqueous dual-component woodwork coating is by including that two parts of host agent and curing agent are prepared.Wherein, host agent includes acrylic emulsion, aqueous polyurethane dispersion, coalescing agent, wetting agent, levelling agent, defoaming agent, wax, preservative, ultraviolet absorbing agent and water;The curing agent is by the mass percent including following components: propylene-glycol diacetate and cyanate ester compositions;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate;The mass ratio of the host agent and curing agent is 1:1.5~1.8.Bi-component woodwork coating of the present invention is with acrylic acid and aqueous polyurethane dispersion for main film forming matter, isocyanates is curing agent, it is cured reaction at normal temperature, it is good with hardness height, resistance to marring, can uvioresistant color inhibition the advantages that, and simple production process, economical rationality can be widely applied to the products such as wood furniture.
Description
Technical field
The present invention relates to water-borne wood coating technical fields, and in particular to a kind of aqueous dual-component woodwork coating and its preparation
Method.
Background technique
Enhancing with people to environmental consciousness, limitation of the country for volatile organic compounds (VOC), aqueous wooden ware
Coating have many advantages, such as VOC content it is low, nontoxic, non-ignitable it is not quick-fried, rapidly developed without fire hazard.Mono-component aqueous woodenware
Coating has the advantages that market acceptance height and cheap, but has certain requirement to construction temperature, humidity, and paint film
Do solid work that speed is slow, the paint film of crosslinking degree also not high formation is not fine and close enough, and the poor quality finally to form a film guarantees, therefore single group
The hardness of paint film and scratch resistance, chemical resistance of part water paint be not high, is difficult to meet some more demanding furniture coatings.
Therefore, in order to meet the requirement in performance, bi-component waterborne woodwork coating just becomes inevitable choice.Due to double groups
Point water-borne wood coating is chemical reaction of becoming film, so the comprehensive performance of paint film is all significantly improved, especially hardness, anti-
It scratches and the performances such as uvioresistant color inhibition is more prominent.
Summary of the invention
The object of the invention is to provide a kind of aqueous dual-component woodenware to overcome the problems of the above-mentioned prior art
Coating, the performance of especially excellent uvioresistant color inhibition more prominent in performances such as hardness, scratch resistances, Neng Gou great
It is big to promote service life.
The purpose of the present invention can be achieved through the following technical solutions:
Aqueous dual-component woodwork coating provided by the invention is grouped as by the group of following mass percent meter:
The host agent includes that the raw material of following components is prepared: the aqueous poly- ammonia of 50-70% acrylic emulsion, 15-23%
Ester dispersion, 1.5-4% coalescing agent, 0.2-1.2% wetting agent, 0.1-0.8% levelling agent, 0.5-1.6% defoaming agent, 0.5-
1.5% wax, 0.2-0.6% preservative, 1-3% ultraviolet absorbing agent and 10-15% water;
The curing agent is by the mass percent including following components: 20-40% propylene-glycol diacetate and 60-80% cyanogen
Acid ester mixtures;The cyanate ester compositions are water-based isocyanate and the mixing for hydrogenating benzene dimethylene diisocyanate
Object;The solid content percentage of the water-based isocyanate is 65-75%, and isocyanate groups account for the quality hundred of water-based isocyanate
Divide than being 10-15%;The mass ratio of the host agent and curing agent is 1:1.5~1.8.
Wherein, the solid content of the acrylic emulsion is 45-50%;PH is 7.0-9.0,25 DEG C of viscosity <
3000mPa.s。
Wherein, the pH of the aqueous polyurethane dispersion is 7-9, solid content 30-40%, 25 DEG C of viscosity <
300mPa.s。
Preferably, in the mixture, the mass ratio of water-based isocyanate and hydrogenation benzene dimethylene diisocyanate
For 1.5~2.5:1;It is furthermore preferred that mass ratio is 2:1.It can be cured with aqueous polyurethane under water-based isocyanate room temperature
Reaction, isocyanates (- NCO) group react to form crosslinking knot with hydroxyl, carboxyl, amino groups on water-base resin strand
Structure can significantly improve water-base resin performance.Hydrogenation benzene dimethylene diisocyanate preparation polyurethane have and with six methylenes
Group diisocyanate (HDI), the same yellowing resistance of the polyurethane of isophorone diisocyanate (IPDI) production.Due to it
Cyclic structure, it show in the curing process can quick surface drying, improve the characteristics such as cured article hardness.The two complements each other,
Collocation use can achieve better effect.
The ultraviolet absorbing agent is the one or more of benzophenone, fragrant beta-diketon.
Preferably, the ultraviolet absorbing agent be benzophenone, fragrant beta-diketon mass ratio be 1:1.3~1.8.It is purple
UV radiation is broadly divided into 3 wave bands according to the difference of its wavelength, and UVA 320-400nm, UVB 290-320nm, UVC are
200-290nm, since absorption of the atmospheric ozone layer to UVA is seldom, so UVA can reach ground, the variation base of amount of radiation
Variation in sheet with ozone layer is not related;And UVC is then with UVA completely on the contrary, it is almost absorbed by ozone layer, so
It substantially less than reach ground;And the amount of radiation of UVB has close relationship with the variation of ozone layer, also has to the mankind biggish
It influences.Therefore the absorbable wave band of benzophenone is UVB, and the fragrant absorbable wave band of beta-diketon is UVA, and the two arranges in pairs or groups use can
Preferably to absorb ultraviolet light, to reach better color inhibition effect.
The ultraviolet absorbing agent (benzophenone, fragrant beta-diketon) of the compounding is in the water-based isocyanate and hydrogen of two-component
More preferably anti-yellowing property can be reached by changing in the curing agent of benzene dimethylene diisocyanate.
Compared with prior art, the present invention has the advantage that as follows:
A kind of aqueous dual-component woodwork coating is provided, there is hardness height, quick-drying, anti scuffing, water-tolerant, the transparency
Well, the features such as uvioresistant color inhibition, and simple production process, economical rationality, paint film property basically reach the poly- ammonia of solvent type
The performance requirement of ester wood lacquer can be widely applied to the products such as wood furniture.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
Acrylic emulsion, acrylic emulsion 816, Guangzhou Rong Dong Chemical Co., Ltd.;Aqueous polyurethane dispersion, ACURE
805, Shanghai Yuan He Chemical Co., Ltd.;Coalescing agent, dipropylene DPNB, DOW Chemical;Wetting agent, BYK346, extensively
This Tu Yuan Chemical Co., Ltd. of state city;Levelling agent, BYK333, this Tu Yuan Chemical Co., Ltd. of Guangzhou;Defoaming agent, BYK028,
This Tu Yuan Chemical Co., Ltd. of Guangzhou;Wax, BYK513, this Tu Yuan Chemical Co., Ltd. of Guangzhou;Preservative;Benzophenone,
Tianmen Chemical Co., Ltd. of Hengchang;Fragrant beta-diketon, Hengshui Ke Xin fine chemistry Co., Ltd;Water-based isocyanate, HDX are aqueous
Curing agent, Jing Xin Huiming Science And Technology Co., Ltd.;Hydrogenate benzene dimethylene diisocyanate, river China fir chemistry (Shanghai) Co., Ltd.;
Propylene-glycol diacetate, Guangzhou Jia Shu Chemical Co., Ltd.
Embodiment 1
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.5.
The host agent includes following components: 50% acrylic emulsion, 23% aqueous polyurethane dispersion, 4% coalescing agent,
1.2% wetting agent, 0.8% levelling agent, 1.6% defoaming agent, 1.5% wax, 0.6% preservative, 2.3% ultraviolet absorbing agent, and
15% water;Wherein ultraviolet absorbing agent is benzophenone: the mixture of fragrant beta-diketon, mass ratio 1:1.3.
By mass percentage, the curing agent includes following components: 40% propylene-glycol diacetate and 60% cyanate are mixed
Close object;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate, quality
Than for 1.5:1.
It prepares according to the following steps:
(1) it prepares host agent: acrylic emulsion, aqueous polyurethane dispersion being subjected to high-speed stirred, then sequentially added into
Film auxiliary agent, wetting agent and defoaming agent disperse 20 minutes;The mixture for adding wax or wax and flatting silica is dispersed with stirring to fineness
≤35μm;Continue to sequentially add levelling agent, deionized water, preservative, ultraviolet absorbing agent and is stirred well to viscosity stabilization;It crosses
Filter is to get host agent;
(2) curing agent is prepared: by water-based isocyanate, hydrogenation benzene dimethylene diisocyanate and propylene-glycol diacetate
It is uniformly mixed to get curing agent;
(3) by above-mentioned host agent and above-mentioned curing agent mix in proportion to get.
Embodiment 2
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.8.
By mass percentage, the host agent includes following components: 70% acrylic emulsion, the dispersion of 14% aqueous polyurethane
Body, 1.7% coalescing agent, 0.2% wetting agent, 0.1% levelling agent, 0.5% defoaming agent, 0.5% wax, 0.2% preservative, 1%
Benzophenone, 1.8% fragrant beta-diketon and 10% water;Wherein ultraviolet absorbing agent is benzophenone: the mixing of fragrant beta-diketon
Object, mass ratio 1:1.8.
By mass percentage, the curing agent includes following components: 20% propylene-glycol diacetate and 80% cyanate are mixed
Close object;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate, quality
Than for 2.5:1.
It prepares according to the following steps:
(1) it prepares host agent: acrylic emulsion, aqueous polyurethane dispersion being subjected to high-speed stirred, then sequentially added into
Film auxiliary agent, wetting agent and defoaming agent disperse 20 minutes;The mixture for adding wax or wax and flatting silica is dispersed with stirring to fineness
≤35μm;Continue to sequentially add levelling agent, deionized water, preservative, ultraviolet absorbing agent and is stirred well to viscosity stabilization;It crosses
Filter is to get host agent;
(2) curing agent is prepared: by water-based isocyanate, hydrogenation benzene dimethylene diisocyanate and propylene-glycol diacetate
It is uniformly mixed to get curing agent;
(3) by above-mentioned host agent and above-mentioned curing agent mix in proportion to get.
Embodiment 3
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.6.
Very form by following quality: the host agent includes following components: 60% acrylic emulsion, 20% aqueous poly- ammonia
Ester dispersion, 2.5% coalescing agent, 0.5% wetting agent, 0.5% levelling agent, 1% defoaming agent, 1% wax, 0.4% preservative,
2.1% ultraviolet absorbing agent and 12% water;Wherein ultraviolet absorbing agent is benzophenone: the mixture of fragrant beta-diketon, matter
Amount is than being 1:1.8.
By mass percentage, the curing agent includes following components: 30% propylene-glycol diacetate and 70% cyanate are mixed
Close object;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate, quality
Than for 2:1.
It prepares according to the following steps:
(1) it prepares host agent: acrylic emulsion, aqueous polyurethane dispersion being subjected to high-speed stirred, then sequentially added into
Film auxiliary agent, wetting agent and defoaming agent disperse 20 minutes;The mixture for adding wax or wax and flatting silica is dispersed with stirring to fineness
≤35μm;Continue to sequentially add levelling agent, deionized water, preservative, ultraviolet absorbing agent and is stirred well to viscosity stabilization;It crosses
Filter is to get host agent;
(2) curing agent is prepared: by water-based isocyanate, hydrogenation benzene dimethylene diisocyanate and propylene-glycol diacetate
It is uniformly mixed to get curing agent;
(3) by above-mentioned host agent and above-mentioned curing agent mix in proportion to get.
Embodiment 4
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.6.
Very form by following quality: the host agent includes following components: 60% acrylic emulsion, 20% aqueous poly- ammonia
Ester dispersion, 2.5% coalescing agent, 0.5% wetting agent, 0.5% levelling agent, 1% defoaming agent, 1% wax, 0.4% preservative,
2.1% ultraviolet absorbing agent and 12% water;Wherein ultraviolet absorbing agent is benzophenone.
By mass percentage, the curing agent includes following components: 30% propylene-glycol diacetate and 70% cyanate are mixed
Close object;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate, quality
Than for 2:1.
It prepares according to the following steps:
(1) it prepares host agent: acrylic emulsion, aqueous polyurethane dispersion being subjected to high-speed stirred, then sequentially added into
Film auxiliary agent, wetting agent and defoaming agent disperse 20 minutes;The mixture for adding wax or wax and flatting silica is dispersed with stirring to fineness
≤35μm;Continue to sequentially add levelling agent, deionized water, preservative, ultraviolet absorbing agent and is stirred well to viscosity stabilization;It crosses
Filter is to get host agent;
(2) curing agent is prepared: by water-based isocyanate, hydrogenation benzene dimethylene diisocyanate and propylene-glycol diacetate
It is uniformly mixed to get curing agent;
(3) by above-mentioned host agent and above-mentioned curing agent mix in proportion to get.
Embodiment 5
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.6.
Very form by following quality: the host agent includes following components: 60% acrylic emulsion, 20% aqueous poly- ammonia
Ester dispersion, 2.5% coalescing agent, 0.5% wetting agent, 0.5% levelling agent, 1% defoaming agent, 1% wax, 0.4% preservative,
2.1% ultraviolet absorbing agent and 12% water;
By mass percentage, the curing agent includes following components: 30% propylene-glycol diacetate and 70% cyanate are mixed
Close object;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate, quality
Than for 2:1;Wherein ultraviolet absorbing agent is fragrant beta-diketon.
It prepares according to the following steps:
(1) it prepares host agent: acrylic emulsion, aqueous polyurethane dispersion being subjected to high-speed stirred, then sequentially added into
Film auxiliary agent, wetting agent and defoaming agent disperse 20 minutes;The mixture for adding wax or wax and flatting silica is dispersed with stirring to fineness
≤35μm;Continue to sequentially add levelling agent, deionized water, preservative, ultraviolet absorbing agent and is stirred well to viscosity stabilization;It crosses
Filter is to get host agent;
(2) curing agent is prepared: by water-based isocyanate, hydrogenation benzene dimethylene diisocyanate and propylene-glycol diacetate
It is uniformly mixed to get curing agent;
(3) by above-mentioned host agent and above-mentioned curing agent mix in proportion to get.
Comparative example 1
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.6.
Very form by following quality: the host agent includes following components: 60% acrylic emulsion, 20% aqueous poly- ammonia
Ester dispersion, 2.5% coalescing agent, 0.5% wetting agent, 0.5% levelling agent, 1% defoaming agent, 1% wax, 0.4% preservative,
2.1% ultraviolet absorbing agent and 12% water;Wherein ultraviolet absorbing agent is benzophenone: the mixture of fragrant beta-diketon, matter
Amount is than being 1:1.8.
By mass percentage, the curing agent includes following components: 30% propylene-glycol diacetate with 70% it is aqueous different
Cyanate.
Comparative example 2
Aqueous dual-component woodwork coating is prepared by host agent and curing agent this two parts, the mass ratio of host agent and curing agent
Example is 1:1.6.
Very form by following quality: the host agent includes following components: 60% acrylic emulsion, 20% aqueous poly- ammonia
Ester dispersion, 2.5% coalescing agent, 0.5% wetting agent, 0.5% levelling agent, 1% defoaming agent, 1% wax, 0.4% preservative,
2.1% ultraviolet absorbing agent and 12% water;Wherein ultraviolet absorbing agent is benzophenone: the mixture of fragrant beta-diketon, matter
Amount is than being 1:1.8.
By mass percentage, the curing agent includes following components: 30% propylene-glycol diacetate and 70% hydrogenation of benzene
Dimethylene diisocyanate.
It prepares according to the following steps:
(1) it prepares host agent: acrylic emulsion, aqueous polyurethane dispersion being subjected to high-speed stirred, then sequentially added into
Film auxiliary agent, wetting agent and defoaming agent disperse 20 minutes;The mixture for adding wax or wax and flatting silica is dispersed with stirring to fineness
≤35μm;Continue to sequentially add levelling agent, deionized water, preservative, ultraviolet absorbing agent and is stirred well to viscosity stabilization;It crosses
Filter is to get host agent;
(2) curing agent is prepared: by water-based isocyanate, hydrogenation benzene dimethylene diisocyanate and propylene-glycol diacetate
It is uniformly mixed to get curing agent;
(3) by above-mentioned host agent and above-mentioned curing agent mix in proportion to get.
Test method:
Hardness (scratch): it provides to carry out by GB/T6739.Pencil is 101 drawing pencil of Chinese board.
Scratch resistance: being provided to carry out by GB/T9279, and given load 100g carries out Scratch Test on scriber, right after test
It is vertical it is red carry out B view in the direction streaked and test piece angle at 45 ° and observe, can not distinguish that scar is then chosen as " not scratching ".
Water resistance: it provides to carry out by GB/T4893.1-2005.Test solution is distilled water, and test area takes the centre of every block of plate
5 layers of scraps of paper are put at position respectively on each test area, need to keep filter paper wet during test, when necessary in cloche
Vaseline is coated with test plate (panel) contact site to be sealed.It takes down filter paper afterwards for 24 hours, inhales thousand, place visual in the case where scatter daylight after 2h
Observation such as has 2 pieces do not occur blistering, cracking, peel off defects of film coating phenomenon in 3 pieces of test plate (panel)s, but allow to occur light discolouration with
Slight gloss variation, then be chosen as " without exception ".Such as there is the above defects of film coating phenomenon to be described by GB/T1766.
Yellowing resistance: it provides to carry out by GB/T23987, uses UVA (340) lamp as light source, test plate (panel) is placed in experimental condition
Being able to satisfy blackboard temperature is (60 scholar 3) DEG C, irradiation level 0.68W/m2, thousand phases (no condensation) fluorescent ultraviolet ageing machine in, entirely
Process keeps continuous illumination 168h.It takes out, is compareed with the test plate (panel) without illumination after the test, measure color change with color difference meter
(△E*)。
Test result is shown in Table 1:
Table 1
Above-mentioned test result shows aqueous dual-component woodwork coating prepared by the present invention, compared with one pack system woodwork coating comprehensive
It closes and is obviously improved in performance, have many advantages, such as that hardness is high, scratch resistance is good, uvioresistant anti-yellowing property is good, can meet high-end
Water-borne wood coating market demands, have broad application prospects.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of aqueous dual-component woodwork coating, it is characterised in that: the aqueous dual-component woodwork coating is by host agent and curing agent
This two parts is prepared:
The host agent includes the mass percent of following components: 50-70% acrylic emulsion, the dispersion of 14-23% aqueous polyurethane
Body, 1.7-4% coalescing agent, 0.2-1.2% wetting agent, 0.1-0.8% levelling agent, 0.5-1.6% defoaming agent, 0.5-1.5%
Wax, 0.2-0.6% preservative, 1-3% ultraviolet absorbing agent and 10-15% water;
The curing agent is by the mass percent including following components: 20-40% propylene-glycol diacetate and 60-80% cyanate
Mixture;The cyanate ester compositions are water-based isocyanate and the mixture for hydrogenating benzene dimethylene diisocyanate;Institute
The solid content percentage for stating water-based isocyanate is 65-75%, and isocyanate groups account for the mass percent of water-based isocyanate
For 10-15%;
The mass ratio of the host agent and curing agent is 1:1.5~1.8.
2. the preparation method according to claim 1, it is characterised in that: the solid content of the acrylic emulsion is 45-50%;pH
For 7.0-9.0,25 DEG C of viscosity < 3000mPa.s.
3. the aqueous dual-component woodwork coating according to claim 1, it is characterised in that: the pH of the aqueous polyurethane dispersion
For 7-9, solid content 30-40%, 25 DEG C of viscosity < 300mPa.s.
4. the aqueous dual-component woodwork coating according to claim 1, it is characterised in that: aqueous in the cyanate ester compositions
Isocyanates and the mass ratio of hydrogenation benzene dimethylene diisocyanate are 1.5~2.5:1.
5. according to the aqueous dual-component woodwork coating in claim 4, it is characterised in that: in the mixture, aqueous isocyanic acid
Ester and the mass ratio of hydrogenation benzene dimethylene diisocyanate are 2:1.
6. the aqueous dual-component woodwork coating according to claim 1, it is characterised in that: the ultraviolet absorbing agent is hexichol first
The one or more of ketone, fragrant beta-diketon.
7. the aqueous dual-component woodwork coating according to claim 1, it is characterised in that: the ultraviolet absorbing agent is hexichol first
Ketone, fragrant beta-diketon mass ratio be 1:1.3~1.8.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110396339A (en) * | 2019-08-08 | 2019-11-01 | 阜阳市伟叶家具有限公司 | A kind of resistance to scraping coating of the environmentally friendly ordor removing of Furniture panel |
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JPH02286758A (en) * | 1989-04-28 | 1990-11-26 | Dainichiseika Color & Chem Mfg Co Ltd | Coating composition |
CN106221541A (en) * | 2016-08-25 | 2016-12-14 | 北京建筑材料科学研究总院有限公司 | A kind of aqueous dual-component woodwork coating and preparation method thereof |
-
2018
- 2018-08-31 CN CN201811012317.1A patent/CN109161270A/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH02286758A (en) * | 1989-04-28 | 1990-11-26 | Dainichiseika Color & Chem Mfg Co Ltd | Coating composition |
CN106221541A (en) * | 2016-08-25 | 2016-12-14 | 北京建筑材料科学研究总院有限公司 | A kind of aqueous dual-component woodwork coating and preparation method thereof |
Non-Patent Citations (1)
Title |
---|
山西省化工研究所: "《聚氨酯弹性体手册》", 31 January 2001, 化学工业出版社 * |
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CN110396339A (en) * | 2019-08-08 | 2019-11-01 | 阜阳市伟叶家具有限公司 | A kind of resistance to scraping coating of the environmentally friendly ordor removing of Furniture panel |
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